88438491 has 6 divisors (see below), whose sum is σ = 127744500. Its totient is φ = 58958988.

The previous prime is 88438481. The next prime is 88438501. The reversal of 88438491 is 19483488.

It is an interprime number because it is at equal distance from previous prime (88438481) and next prime (88438501).

It is not a de Polignac number, because 88438491 - 2¹⁰ = 88437467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88438451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4913241 + ... + 4913258.

It is an arithmetic number, because the mean of its divisors is an integer number (21290750).

Almost surely, 2^88438491 is an apocalyptic number.

88438491 is a deficient number, since it is larger than the sum of its proper divisors (39306009).

88438491 is a wasteful number, since it uses less digits than its factorization.

88438491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826505 (or 9826502 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 88438491 is about 9404.1741264185. The cubic root of 88438491 is about 445.5335786984.

The spelling of 88438491 in words is "eighty-eight million, four hundred thirty-eight thousand, four hundred ninety-one".